Machine for manufacturing asbestos yarn



J. A HEANY. MACHINE FOR MANUFACTURING ASBESTOS YARN.

APPLICATION FILED MAR. 3,1920- 1A07Q685. Patented Feb; 211, 1922 nn stares I aos-nee.

.ronn ALLEN Enem on NEW HAVEN, oonunctrrcu'r, ASSIGNOR, BY ransma ASSIGN- rann'rs'ro noonnns'ros rnonoo'rs conronarron, a conrona'rion or nnrawann.

, MACHINE FOR ivraun'racr'onine .esnnsros ream.

To all whom it may concern:

. Be'it known that 1, JOHN ALLEN HnAN-Y, a citizen of the United States, and a resident of New Haven, in the countyof New Haven and State of Connecticut, have invented certain new and usefu'l Improvements in Machines for Manufacturing Asbestos Yarn, of

which the following is aspecification.

. under pressure around the filaments.

My invention relates to the manufacturing of reinforced asbestos-yarn, and particularly relates to certain mechanical details of an apparatus used for this purpose. The manufacture of reinforced asbestos yarn according to the process described in,

Serial 0. 355,- 1-17, conslsts in mixing asbestos fibers with my copending application a small percentage of cotton, subjecting the mixture to a thorough carding process to form a plurality of ribbon-like slivers, feeding said slivers to ether with reinforcing threads or wires between longitudinallytravelling and laterally-reciprocating rub motion belts to roll the slivers compactly around the reinforcing threadsor wires, and

finally twisting the reinforced strands.

The invention which forms the subject matter of this application relates to the' mechanism for feeding the carded slivers andreinforcing filaments from the doffer rings of the carding machine to the rub motion belts.

Referring to the drawings,

Fig. 1 is a side elevation showing some what diagrammatically the doffer ring of a carding machine, together with the mechanism which forms the subject matter'of my invention.

Fig. 2 is a plan view of the transfer belt. Fig. 3 is a longitudinal section thereof. Fig, 4 is a plan view of a modification of the transfer belt; and

Fig. 5 'is a longitudinal section of'said modification.

Referring to Figs. 1, 2 and 3, numeral 10 designates the doffer ring of'a carding machine, from which carded asbestos slivers are stripped by the reciprocating comb 11 and delivered onto the transfer belt 12 in superposed relation to wires or filaments supplied by the feed rolls 13. The slivers and filaments pass from the belt 12 between laterally -reciprocating ind longitudinally-progressing rub belts'l i, which roll the slippers he reinforced strands thus produced are then vent them from cutting into the belt.

- p fi n of Lett@1i51atent- I Patented Feb. 21, 1922. a pneatioa fl ed 'March 3, 1920. Serial no. ceases.

rolled intolcops 15 which may be subsequently transferred to twisting machines.

' As shown in Fig. 1, thc transfer belt is supported closely adjacent the doffer ring. so as to receive directly the asbestos slivers which are stripped therefrom by the comb should be positively driven at such speed as to make the travel of belt 12 equal to the longitudinal travel of the rub motion belts 14..

As shown by Figs. 2 and 3, the transfer belt 12 consists of leather or other suitable material, provided with transversely arranged metallic slats or bars 16, fixed in any suitable manner on the outer surface thereof.

Figs. 1 and 5 illustrate a modification wherein the belt consists of leather or other flexible material provided with T-shaped metallic pieces 17 arranged in parallel rows, each row being adapted to receive and supj port a sliver of asbestos, together with its reinforcing filament.

l have found after much experiment that a belt of the above-described construction provides ii most satisfactory means for conveying the filaments and slivers from the doffer rings to the rub motion belts. The belt 12 presents a flat surface in alinement with the space between the rub motion belts and consequently the slivers delivered thereon are well supported and accurately fed to said rub motion belts. The metallic slats 16 or pieces 17 support the filaments, and pre- A belt composed solely of leather or other fibrous material would not answer the purpose so well, particularly when metallic filaments are used for reinforcing the asbestos; for the fine wires would quickly wear deep grooves in the belt, thus destroying the adjustments and ultimately rendering the belt useless.

I do not limit my invention, however. to a belt consisting of fibrous material having metallic reinforcement for preventing the reinforcing filaments from cutting into the belts, but my invention contemplates broadly a transfer belt in the combination hereinafter claimed composed of any material adapting said belt to perform its intended function.

- I claim:

chine, a pair of. longitudinally-progressing and laterally-reciprocating Iilby belts, a transfer belt supported betweens'aid rub belts and the doffer rings of chine, means for directing supporting filaments along said transfer belt, belt being arranged to receive thereon slivers of asbestos stripped from the doffer-rings and to feed said slivers together With reinforcing filaments to said rubbelts.

2.- In combination With a carding machine, a pair of rub motion belts, a transfer belt supported between said rub belts and the doffer rings of the carding machine, means i for directing supporting filaments along said transfer belt, said transferbelt -being arranged to receive'the'reon slivers of asbestos the carding mac said transferstripped from the doffer rings and to feed said slivers, together with reinforcing filaments, to said rub belts, said transfer belt being provided with 'metallicreinforcement for supporting said filaments.

In combination with a carding machine, a pair of rub motion belts, a transfer belt supported between said r ub belts and the dofi'er rings of'the cardlng machine, means for directing supporting filaments along saidtransfer belt, said transfer belt being arranged to receive thereon slivers of asbestos stripped from the dofl'er' rings and to feed said slivers, together with renforcingfilaments, to said rub belts, said transfer belt having transversely-extending metallic 4 slats for supporting said filaments.

JOHN ALLEN HEANY. I 

